Rib-tightening machine.



F. H. WARREN.

RIB TIGHTENING MACHINE.

APPLICATION FILED MAY18,-19\4.

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FRANK H. WARREN, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, 0E PATEBSON, NEV\7.JERSEY, A CORPORATION OF NEW JERSEY.

RIB-TIGHTENING MACHINE.

Specification of Letters Patent.

Patented Nov. 6, 1917.

1 '0 all whom it may concern:

Be it known that I, FRANK H. WARREN, a citizen of the United States, residing at Swampscott, in the county of Essex and State of lilassachusetts, have invented certain new and useful Improvements in Rib- Tightening Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for applying reinforcing material to insoles. The reinforcing material is generally, although not necessarily, a fabric such as canvas or duck and for clarity of description all classes of such material are referred to hereinafter by the simple term fabric.

There are several types of machines of this generalclass, 2'. 0., the forming-in machine, the fabric molding and trimming machine, and the rib-tightening or lip-hardening machine. One of the features of the present invention, hereinafter explained, is useful in connection with the mechanisms of any one of said types, while the remaining feature of inventionis especially useful in the last named type of fabric applying machine although not limited to such use.

It is especially important in applying the reinforcing fabric that it be forced snugly into the vertex of the angle at the inner side of the lip, or stitch receiving rib, of whatever nature it may be. The drawing accompanying Letters Patent of the United States to A. R. Tirrell No. 811,260, January 30, 1906, well illustrates the troubles encountered when the fabric is not properly secured at the inner side of the lip. It has been discovered that a proper application of the fabric is assisted by pounding it at the inner side of the lip against a cooperating abutment, or tool, for supporting the outer side of the lip. It has also been discovered that less liability to crippling is incurred if a rotary tool is used at the inner side of the li The object of this invention is to improve the means for securing reinforcing fabric to the lip, or rib, of an insole in a machine of the character described.

So far as is known to the present inventor such machines as secure the fabric at the inner side of the lip by blows, release the lip between successive blows, see for instance the hammer of Letters Patent of the United on, but which at the same time maintains a i 4 continuous and progressive engagement therewith.

One manner of utilizing this feature is by mounting a rotary tool, ha ving a continuous rotary movement imparted thereto, eccentrically upon its shaft.

A further feature of the invention contemplates the provision, in a rib tightening or other reinforcing fabric applying machine, of means for preventing the inside fabric forming tool from engaging beneath the fabric, where it terminates at the breast line of the insole, just as the operation is commenced. Preferably the machine is provided with a yielding presserfoot, which as the insole is fed into the machine, rides up over the edge of the fabric and holds it down during the advance of the fabric forming tool, causing the tool also to invariably ride up on to the top of the fabric in the manner intended.

To the accomplishment of the object of the invention named, and such others as may appear from the following description, the invention comprises the features and combinations of parts hereinafter described and then set forth in the appended claims.

The preferred form of the invention is shown in the accompanying drawing in which:

Figure 1 is a front elevation of the working tools of a reinforcing fabric applying machine of the general character of that illustrated in Letters Patent of the United States to G. E. Rollins, No. 1,072,168, granted September 2, 1913;

Fig. 2 is a right side elevation of the parts illustrated in Fig. 1;

Fig. 3 is a detail of the eccentrically mounted inside forming tool; and

Fig. 4 is a section, in plan, on the line l- 1 of Fig. 1 showing the relative arrangement of the inside forming tool and presser foot.

In the embodiment of the invention illustrated in the drawings, a portion of the frame of the machine is shown at 1, this frame supporting the cylindrical sole support 2, the outside forming tool 3 and the inside forming tool e. The work support and outside forming tool are positively r0,- tated by suitable gearing from the driving shaft of the machine and act together to feed the insole through the machine. The inside forming tool is mounted upon a. shaft 5 (see dotted lines Fig. 1) which constitutes the means for rotating this tool, the shaft being continuously driven by any suitable means, for example by gearing as shown in the patent to Rollins hereinbefore referred to. The work support 2- is partially surrounded by astationaryi table 6,, mounted on the frame, which assists in supporting the insole.

The frame 1 carries a longitudinally arranged horizontal shaft or stem 7 (see dotted lines Figs. 1 andQ) extendingrear wardly through a stem gear for driving the outsidetool 3, which, during the operation of the machine, is held from rotation by any suitableorconvenient locking device. The forward end of this shaft isprovided with a right; angular bracket 8 which carries the blockfor supporting the inside forming tool. The block is shown at 9 and eXt-ends horizontally across the-front of, the. machine being provided at its left hand end with areduced-cylindrical portion 10 adapted to fit in a bore drilled for its reception in the rear wardlyprojecting arm of the right angular bracket 8. The block 9 heldzin place by thewell-known mechan cal device comprising a bolt 11', having-a flattenedside, bearingagainst the cylindrical portion 10 of; the block. Theblock- 9 isalso provided with a vertically arranged circular bore adapted to receive a sleeve 12 within which isthe rotaryshaft 5 for'theinside-forming tool, The. sleeve 12 is held in its desired v t ca ipeei n in th ock 91bit means f a; small cylindrical block 13, loosely held in a holedrillt-id; longitudinally through; the part- 1 O, and pressed upon byfa tap-screw 1 1 threaded into the part lO. Vithin the sleeve 12 is a second sleeve 15 provided with alcol lar 16 adapted to rest against a shoulder formed by enlarging the diameterof, the opening in thesleeve 12. Between; the upper surface ofthe collar 16 and the inner surfaceof acap 17 threaded onto the sleeve12 there is seated a coiled spring 18, surround, ing the sleeve 15, which holds the inside forming tool d in yielding engagement with the reinforcing; fabric. The sleeve 1 5- acts as a bushing for the shaft 5, and is held from rotationwithin the sleeve1-2 by being slotted at its lower end,4a pin,19 (see dottedv lines Fig, 1 projecting. inwardly fr m; the sleeve 12 into the slot. The upper end of the shaft; 5; is provided witha, left hand thread onto which is screwed a 1 cap-shaped head 20,

Rotary motion in a contra-clockwise direction,' is imparted to the shaft 5 through an arm 21 having aball end-'22 seated in the opening of the head 20 and provided with a laterally projecting pin 23 engaged by the side walls of" a vertical slot 21 in the head 20. This construction provides for vertical play of'the shaft 5 against the spring 18.

The mounting of the inside forming tool is, in general, similar to what is found in machines of this type, but there is one; very important distinction which consists in mounting the tool 4 eccentrically with rela tion to its driving-shaft: By. mounting the inside forming tool- 4, in this manner, and by holding its shaft rigid} relatively to the outside forming: tool upon ro ation. 0fthe inside forming; tool its; eccentric mounting. causes recurrent pressures to be delivered: to thetfabric at the vertex of the angleat theinner side of the lip, which materially assists: in securing the fabric in place, A further advantage, of this construction is that the described action upon thelip is secured without withdrawing the tool from contact; with; the lip. In other words, there is a' continuous and progressive 1 action of the; tool upon the lip, w,hile, at'the same time there is; the added advantageof the recurrent increased pressures. This overcomestl isadvantagm hereinbefore referred to in the use ofa; hammer'for pounding the fabrie in: place, In; practice the eccentricity of the tool. is comparatively small, ordinarily abou f an; nch The inital set ting up adjustment of the tool shaft 5 relas til ely to the; outsidea orlning t obviouslyv myustbe suchthat the'lip is compressed a distance equali to; twice the eccentricity of the 1 .0.01, in ord'erto maintaina continuous engagement between thetool and lip.

Some diff culty has been experienced in machines havingan; inside forming toolcomprising a rotarywhirl-, especially when. used; to perf the; rib tightening or lip hardeningoperation due to, the fact that there: is a tendency for tl e'rotary tool to pickupthe edge of themeinforcing fabric, ifitszedge;doesnotzlie' tight against the-face of; the insole andrip it fromthe insole in? stead offtraveling upiover the fabric, as-is n ended To; overcome the production of cripples fromthis sourceflthe machine of thepresent invention has; been provided with a presser foot 25 adapted? to bearvupon the face of the insole inside of the lip and in advance of, the;insideformingtool inthe line of feed. The PIGSSQlZ-TOO}; 25 isicarried in a. sleeve 26 which; is secured in a vertically arranged;v bore in the right hand side of the block 9, this end of. they blOckbeing splitrv opposite the; bOle and; thGySlGGY-Q clamped therein by aclamping screw 27. Inside of the sleeve,- 26 isthe shank 2870f. he-'presserfoot,this

shank being held from rotation by means of a laterally projecting pin 29 extending into a vertical slot 80 (Fig. 2) in the sleeve 26. The pin and slot connection, however, permits a vertical movement of the presser foot, the shank 28 of which is borne upon by a coiled spring 31 seated between the upper end of the shank and a screw threaded plug 32 at the upper end of the sleeve 26. The presser foot 25 projects from its shank 28 toward the inside forming tool 4, the foot having a flat under surface to bear upon the insole and a slightly concaved end by means of which it is enabled to partially surround the inside tool. The purpose of this construction, which is shown best in Fig. f, is to provide for an overlapping of the acting edges of the adjacent edges of the presser foot and inside forming tool, so that at the time that the inside forming tool meets the edge of the reinforcing fabric said edge is still held pressed to the face of the insole by the presser foot. This construction, therefore, insures a riding of the inside forming tool over the fabric, where it terminates near the breast line of the insole, instead of under it.

The vertically yielding mounting of the inside forming tool and the presser foot take care of the inequalities of the work being operated upon. The mounting of these tools hereinbefore described, provides for the necessary adjustments for thickness of the lip, etc.

A machine for applying reinforcing fabric constructed in accordance with the present invention, possesses all of the advantages of machines of this character familiar to those skilled in the art, and, also has the added advantages of insuring a tight contact of the reinforcing fabric with the insole at the inside angle, the most important place. and relief from the crippling of insoles caused by the engagement of the inside forming tool beneath the fabric as it rides on to said fabric in advancing from the unreinforced heel seat.

lVhile in describing the machine, and in the following claims, it has been convenient to refer to the work as an insole it will be obvious to those skilled in the art that the features of the invention are desirable and useful in any reinforcing operation upon soles whether they be insoles or turn soles.

The nature and scope of the present invention having been indicated and the preferred embodiment of the invention having been specifically described, what is claimed as new is:

1. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting and feeding an insole, a tool for supporting the outer side of the lip, and a tool for securing the fabric in the vertex of the angle at the inner side of the lip constructed and arranged to impart recurrent pressures thereto while maintaining a continuous and progressive engagement with the fabric in the vertex of the angle.

2. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting and feeding an insole, a tool for supporting the outer side of the lip, a rotary forming tool at the inner side of the lip, and means for causing said forming tool to impart recurrent pressures to the lip Without withdrawing from contact therewith.

3. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting and feeding an insole, a tool for supporting the outer side of the lip, an eccentrically mounted, rotary tool at the inner side of the lip,and means for rotating said tool.

at. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting and feeding an insole, cooperating, rotary, fabric forming tools at both the inner and outer sides of the lip, said tool at the inner side of the lip being eccentrically mounted on its shaft, and means for rotating said tools.

5. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting and feeding an insole, a vertically arranged shaft, means for rotating said shaft, a forming tool having a curvilinear edge eccentrically mounted on the lower end of said shaft and projecting into the angle at the inner side of the lip, and an abutment at the outer side of the lip.

6. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting, feeding and operating on the margin of an insole including a rotary tool for engaging the fabric in the vertex of the angle at the inner side of the lip of the insole, and a presser foot bearing on the face of the insole inside the lip and in advance of said tool in the line of feed.

7 A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting, feeding and operating on the margin of an insole including a fabric applying tool at the inner side of the lip of the insole, and a presser foot yieldable relative to the tool and bearing on the face of the insole inside the lip in advance of said tool in the line of feed.

8. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting, feeding and operating on the margin of an insole including a tool at the inner side of the lip of the insole, a presser bar at the advance side of said tool in the line of feed, and a presser foot carried by said bar constructed to bear on the face of the insole and shaped to overlap the advance edge of said tool.

9. A machine for applying reinforcing fabric to insoles, having, in combination, means for supporting, feeding and operating fabric to insoles, having, in combination,

sole feeding means, a sole support, a rotary forming tool at the outer side of the lip, a rotary forming tool at the inner side ofthe lip, and a non-rotatable presser foot in ad Vance of the inner forming tool constructed and arranged'to press the edge of the reinforcing fabric to the sole as said tool rides on to said fabric in advancing from the unreinforced heel seat.

11. A machine for applying reinforcing fabric to insoles, having, in combination,

means for supporting an insole, a tool for Copies of this patent may be obtained for five cents each, by addressing Washington, D. 0.

supporting the outer side of the lip, a tool for securing the fabric at the inner side of the lip constructed "and arranged to impart varying pressures to the fabric at the vertex of the inside angle While maintaining a continuous engagement therewith, and means for transferring the pointof operation of said tool along the li '12. A machine for-applying reinforcing fabric to insoles, having, in combination, means for supporting and feeding an insole and for operating on its marginal'portion including a tool for supporting the-outer side "of the lip, anda tool at the inner side of the lip having a continuousengagement therewith for pressing the fabric at the vertexof'th'e inside angle with a recurrent in creased pressure astlieinsole is fed past said tool. I

FRANK H. XVARREN.

\Vitnesses Y W ARREN G. OGDEN,

ELSIE Press.

the Commissioner of Patents, 

